package com.framework.filter;
import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;

public class CustomSecurityFilter extends AbstractSecurityInterceptor implements Filter  {
	private FilterInvocationSecurityMetadataSource securityMetadataSource;

	public void init(FilterConfig arg0) throws ServletException {
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		FilterInvocation filter = new FilterInvocation(request, response, chain);
		InterceptorStatusToken token = super.beforeInvocation(filter);
		try {
			filter.getChain().doFilter(filter.getRequest(), filter.getResponse());
		} finally {
			super.afterInvocation(token, null);
		}
	}

	/**
	 * 
	 */
	public void destroy() {
	}

	public SecurityMetadataSource obtainSecurityMetadataSource() {
		return this.securityMetadataSource;
	}

	public FilterInvocationSecurityMetadataSource getSecurityMetadataSource() {
		return securityMetadataSource;
	}

	public void setSecurityMetadataSource(
			FilterInvocationSecurityMetadataSource securityMetadataSource) {
		this.securityMetadataSource = securityMetadataSource;
	}

	public Class<? extends Object> getSecureObjectClass() {
		return FilterInvocation.class;
	}

}
